code: def test_environment():
      environment = get_environment()
      assert isinstance(environment, jinja2.Environment)
  
file_path: dask/dask/widgets/tests/test_widgets.py
imports: from __future__ import annotations
  import os.path
  import pytest
  from dask.utils import format_bytes
  from dask.widgets import FILTERS, TEMPLATE_PATHS, get_environment, get_template
label_desc: Use image node_id 3 for calling a global function with example usage: test_environment() without return types